Henry j



(oModel.)

H. J. DAVIBS 8v F. J. NUTTING. Pendulum Regulator for Clocks.

' Pa1en1e11une14,1881

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UNITED STATES PATENT OFFICE.

HENRY J. DAVIES AND FREDERICK J. NUTTING, OF BROOKLYN, NET YORK; SAID NUTTING ASSIGNOR TO SAID DAVIES.

PENDULUM-REGULATOR FOR CLOCKS.

SPECIFICATION forming part of Letters Patent No. 242,892, dated June 14, 1881.

Application elta Api-i1 1, resi. (No model.)

To all whom it may concern:

Beit known that we, HENRY J'. DAVIns and FREDERICK J. NU'r'rING, both ot' Brooklyn, in

the county of Kings and State ot' New York,

5 have invented certain new and useful Improvements in Pendulum-Regulators for Clocks, ot' which the following is a specification.

Our invention relates to means employed for raising or lowering the pendulum-rods of 1o clocks, so as to increase or diminish the length of' pendulum-rod which is free to vibrate.

The invention consists in the combination, with the pendulum-rod and the suspension device to which the upper end thereof is at tached, of a wedge upon which the suspension device rests, a guard or stop for retaining said device upon the wedge, and means, pret'- erably consisting of a screw, for adjusting the said wedge transversely to the plane of oscil- 2o lation of the pendulum, to cause it to project more or less through or beneath the snspension device, which rests upon it, and thereby toraiseorlowerthependuluni-rod. Thewedge forms one side of a V-shaped bearing,in which z5 the suspension device rests, and preferably projects through a slot in said suspension device, while the other side of the bearing is formed by the guard or stop which retains the suspension device on the wedge.

3o In the accompanying drawings, Figure l represents a front view of such parts ot' a clockmovement as are necessary to illustrate our invention, and Fig. 2 represents a vertical section thereof upon the line no oc, Fig. l.

Similar letters ot' reference designa-te corresponding parts in both figures.

A designates the front plate ot' the movement, and B designates the pendulum-rod, which is actuated, in the ordinary way, by a 4o crutch-wire, C, from the escapement-pallets D.

E designates the ordinary curb-pin, which is slotted or split to receive the ilexible or elastic iiattened upper end portion, B', ot' the pendulum-rod, and the lower edge of which constitutes the xed axis ot' oscillation of the pendulum.

F designates the. device from which the pendulum -rod is suspended, which consists of a dat plate, having at its lower part aprojection, u, which is split or slotted to receive the 5o flattened end B of the pendulum-rod, and the said rod is secured therein by a cross-pin, b, in the usual way. rlhe suspension device F is constructed with a slot, c, and is supported upon the inclined upper face of a wedge, G, which passes through said slot.

H designates a bridge, which is provided with feet or flanges d, by which it is secured to the front of the plate A, and these feet or lian ges are ott'set or deflected inward, so that 6o suflicient space is left between the middle portion of the bridge and the movement to receive the wedge G, as seen clearly in Fig. 2. The bridge II is constructed with a slot, c, which is coincident with the slot c in the suspension device F, and through whichthe wedge G projects. A portion, f, of the lower edge of the wedge rides upon the bottom ofthe slot e, and thus aids in supporting and holding the wedge against downward movement. 7o

It will be observed that the suspension deviceF is really supported upon the inclined upper edge or surface ot' the wedge G, while the bridge H simply serves as a guard or stop to prevent any lateral movement or displacement of the suspension device.

The wedge G and bridge H together form a V-shaped bearing, in which the suspension device F rests, the wedge and bridge each forming one side of the bearing. 8o

It will be understood that in order to raise the pendulum-rod B it is only necessary to ad just the wedge G transversely to the suspension device F and plane of oscillation ot' the pendulum away from the plate A, while to lower the pendulum-rod it is necessary to adjust the wedge in the reverse direction. The means employed for this purpose preferably consist of a screw, I, which is supported in bearings g in the front plate, A, and bridge go H, and is held against longitudinal moveA ment in either direction by said plate and bridge. The outer end of the screw projects through an opening in the dial J, andis squared to receive a key, whereby it may be turned. The screw I is made to engage with the wedge G by means of lugs or eyes h upon the wedge, through which the screw passes, and which may be themselves screw-threaded, or serve to retain betvveen them a nut, with vvhich the screw engages, as clearly seen in Fig. 2.

In clocks in which the pendulum is at the back of the movement the screw I should be made of snli'licient length to extend through the dial; but the operation vvould he the same as where the pendulum is at the front of the movement.

Vhat vve claim as our invention, and desire to secure by Letters Patent, i sl. In a clocl;-1noven1e1it, the combination, with the pendulum-rod andthe suspension device to which said rod is attached, ot' a Wedge upon which said device rests and is supported, a guard or stop for retaining said suspension device upon said wedge, and means for adjusting said wedge transversely to the plane ol' oscillation oi" the pendulum, substantially as and for the purpose specified.

2. In a clock-movement, the combination, with the pendulum-rod and the suspension device to which said rod is attached, ot' a V- shaped bearing for saidv device, one side of said bearing being` formed by a Wedge, and the other side by a guard or stop for retaining the suspension device upon said Wedge, and means for adjusting said wedge transversely of said suspension device, substantially as and for the purpose specified.

3. In a clock-movement, the combination, with the pendulum-rod and the suspension device to which said rod is attached, of a Wedge upon which said device rests and is supported, a guard or stop for retaining the suspension device upon said wedge, and a screw for adjusting said vvedge transversely to said device,

substantially as and for the purpose specified. 4. The combination ofthe peinlulum-rod B, the suspension device F, and guard or stop II, having coincident slots c and c, the wedge G, and the screw I, substantially as specified.

HENRY J. DAVIES. F. J. NUTIING.

lVitnesses:

FRANK CHAMBERS, Jos. Sonvvnrsnu. 

